package category;
class A {
   public static void main(String args[]){
        System.out.println("A is a main method invoke");
   } 
}

class B {
    public static void main(String args[]){
         System.out.println("B is a main method invoke");
    } 
}

class C {
    public static void main(String args[]){
         System.out.println("C is a main method invoke");
    } 
}

class D {
    public static void main(String args[]){
         System.out.println("D is a main method invoke");
    } 
}
public class Category {
    public static void main(String args[]){
        System.out.println("category is a main method invoke");
    }
    
}
